Thank you for your response Tanju. There is no uninstall option for Lightroom 5, like there is for the CC 2015. I'm sure there's another way I can remove it. When I tried to import the Lightroom 5 catalog into my Lightroom CC 2015, I receive the error message 'There is nothing to import in the catalog you have selected'. When I open up the Lightroom 5 catalog in Lightroom CC 2015, no photos show up at all. Message on the screen says 'Click the 'Import...' button to begin. I did this, found the folder and the import says 'no photos found'. I'm sure I'm doing something wrong.
That is right, for Lightroom 5 there is no uninstaller, so you need to simply Trash lightroom 5.
And please make sure you know the location of the Lightroom 5 Catalog that you are working on, and then open Lightroom CC 2015, click on File>Open Catalog.
Then select the location of the Lightroom 5 catalog that you were working on.